Systester Instruments Co., Ltd.

Air Permeability Tester GTR-721

GTR 721 is based on the differential pressure method, and is professionally
applicable to the determination of gas transmission rate as well as solubility
coefficient, diffusion coefficient and permeability coefficient of plastic films,
laminated films, high barrier materials, sheeting,metal foils, rubber, tires and
permeable membranes.

(1) Vacuum differential pressure method
(2) Built in embedded system with 24bit Δ-Σ AD, remote maintenance
and upgrade
(3) One-Click start a test and test automatically stop, no any
manual operation is required during the process until the end of the test
(4) Do NOT need to preset any test parameters before a test, zero
operation experience requirements, proprietary technology
(5) 3 specimens test simultaneously and independently
(6) According to the test state, the vacuum pump starts and stops
automatically, do NOT need manual operation
(7) Computer control, multiple test modes: Increment, proportional
and intelligent
(8) The temperatures of chambers which hollow inside and with
circulating water are stable, high precision and wide range, 3
chambers with independent temperature sensors to monitor
(9) Test under various RH conditions with Humidity generator (optional)
(10)Built in environment temperature and humidity sensor
(11) Permeability coefficient ,solubility coefficient and diffusion
coefficient test
(12) Various curves display: chambers temperature, test pressure,
transmission rates, etc
(13) Traceable reference film calibration
(14) Supports DSM system (DSM, lab data management system).

ASTM D1434, ISO 15105-1,ISO 2556,GB/T 1038-2000,JIS 7126-1,YBB 00082003

Standard:Main Unit, Computer,
G-TRANS Software, Temperature Controller,
Vacuum Pump, Vacuum Pump Control Model,
Tank Regulator, PCIE Card,
Communication Cable, Sample Cutter,
Vacuum Grease.
Optional: Humidity Generator, Reference Film, Vacuum Grease, Sample
Cutter, DSM system.
Note: Specifications are subject to change without prior notice.
Main Technical Parameters

Technology   table
Test range 0.05 - 190,000 cm3/m2·24h·0.1MPa (Standard)
Resolution 0.001 cm3/m2·24h·0.1MPa
Samples: 3, independent
Vacuum   accuracy 0.1Pa
Temperature   range 5℃~95℃
Temperature   accuracy ±0.1℃
Humidity range 0%RH,35%RH-90%RH,100%RH   (optional)
Humidity   accuracy ±1%RH (optional)
Sample   thickness ≤5mm
Sample size ≥150mm*94mm
Test area 48cm2
Test gas O2, N2, CO2, He etc
Gas pressure -0.1MPa - 0.1MPa
Gas interface Ф8mm
Dimension 730mm(L) * 510mm(W) *   350mm(H)
Power supply AC 220V 50Hz
Net weight 63kg

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